File Processing using AWK & SED | Step by Step Shell Scripts

AWK & SED

Many UNIX utilities generates rows and columns  information. AWK is an excellent tool for processing these rows and columns, and is easier to use AWK than most conventional programming languages. It can be considered to be a pseudo-C interpreter, as it understands the same arithmetic operators as C.

AWK also has string manipulation functions, so it can search for particular strings and modify the output. AWK also has associative arrays, which are incredible useful, and is a feature most computing languages lack. Associative arrays can make a complex problem a trivial exercises

AWK Coverage   Basic to Advance AWK

• Environment Setup with Test Data Setup

• Basic Operations-Fetch One or Multiple Columns Data (With Exercise)

• Basic Operations-Fetch One or Multiple Columns Data with Separator

• Conditionally Fetch Data using Logical AND and Logical OR

• Condition Handling with AWK Commands

• AWK Looping & Blocks

• AWK Blocks

• Save AWK Results to the file

SED Coverage

• SED Introduction

• Display one or Few lines in Output

• Display Data by Search conditions

• Skip Data to display in output

• Find and Replace Data

• Search |  Insert | Update and Delete Data

Search Data using GREP commands

• Search Data in one or Multiple Files

• Search Data in All files

• Search data with case or ignoring case

• Search data with surrounding words

• Advance Search Condition

Cut Commands

• Cut Columns

• Cut Range of Columns

• Cut by characters

Shell Scripting

• Shell Scripting basics

• Working with System and User Variables

• Functions

• Looping

• Condition Handling